Wang Tongshi: My understanding of premixing
If you are interested in , I will talk to you about my understanding of !
First, the background of
To talk about premixes, we must first return to animal physiology. The three major nutrients in the routine are protein, starch and fat, which account for more than 95% of the total nutrients, but there are still less The 5% ratio has played a key role.
At present, our animal husbandry is mainly based on the economy, in order to obtain more profits with higher input-output ratio. If it is not for the economy, then less than 5% of things can be used.
We want to convert protein, starch and fat into animal protein and fat more efficiently, and we also hope that animals have a higher survival rate; we hope that the animals will grow in sync and the animal uniformity is very good, which is convenient for subsequent processing. . For so many goals, it is necessary to use premixes. This also defines the core value and core functions of the premix.
Second, the role of
Premixes must ensure the healthy development of each animal. The premix is ​​to ensure the full conversion of the three major substances of protein, starch and fat. The premix should ensure the stability of itself and the full price. So the premixing scheme came out.
1. The conventional calcium hydrogen phosphate and phytase in the premix are intended to provide effective phosphorus, which allows the animal to grow with better economic returns while ensuring the development of bones in young animals.
2. The use of salt is to ensure adequate and sufficient feed intake. Not only for the nutritional value of salt. In order to ensure the feed intake of animals, we usually use 10-20% or 30% more on the basis of national standards.
Although salt is very cheap, the amount of salt used will determine the quality of the premix.
Salt also poses a big risk, that is, the moisture content of the premix, because salt is easy to absorb moisture, if the water content in the premix becomes higher, the effect of the premix will soon deteriorate.
3, the use of stone powder, for me, I am used to using stone powder as little as possible, even if the calcium content in the feed is not very high, because the stone powder this material eats into the stomach will quickly neutralize stomach acid, no stomach acid, animal The digestive capacity is reduced and the feed intake is reduced.
The argument that Mr. Li said just now said that premixes are similar. Those who really understand the design principle of premix know that the difference between premixes is very large. Pure calcium and phosphorus will cause animals. The intake of food is very different. For pigs, the level of feed intake has a great impact on the economic benefits of raising pigs.
Water is one of the most unstable factors in premixing. The salt content directly interferes with the premix water content.
Everyone understands that different manufacturers have different treatment schemes, and the premixes actually vary greatly. Only those who do not understand the premix production design feel that the premix is ​​not much different.
After talking about calcium phosphate, the rest is extremely small.
4, the first is amino acids, followed by trace element vitamins.
The amino acids in the premix. It has a great influence on the effect of premixing. It also creates a lot of cost burdens.
You must estimate the amino acid content of the feed ingredients in advance, and make up the missing parts of the amino acid through the premix. Therefore, different formulators have different mastery data on raw materials, resulting in different amino acid content in the premix. This also creates a difference in the effect of the premix.
I often see that some people design broiler feed, meat duck feed, and a large amount of methionine added, resulting in cost waste.
5, trace elements is a very delicate topic, I believe that after ten years, all manufacturers will be seriously aware of their lack of understanding of trace elements.
The most dangerous thing in the premix is ​​the trace elements. They are very active electron carriers and are very strong catalysts. After encountering water, they immediately became uneasy, so the water content in the premix must be strictly controlled.
Another way is to say something in a joke that keeps trace elements in cages.
At present, there is a slow-release trace element dosage form in industrialization, which is to pack the trace elements and put them into the water without metal ions. The trace elements in this form are very stable and will not damage the nutrients in the premix.
It can also be seen from the understanding of trace elements that the quality of the premix varies greatly.
In particular, everyone plans to use water to mix pigs. Trace elements in the form of ionic salts, once they see water, will quickly cause the feed to deteriorate. The stability varies greatly. Many people use water to feed the pork, which is related to these factors.
6, vitamins, the vitamin industry is very mature, there is no change in about 30 years, but the vitamin stability is very poor, like vitamin A is very stable, absorption has become worse.
At present, with the development of microcapsule slow-release technology, vitamins also have such products. The use of different vitamins has a great impact on animal metabolism, so in this respect, the premix is ​​explained again. Not all the same.
7, functional part, one of the most powerful one is about feed efficiency, which is the problem of feed to meat ratio.
One principle is that the feed we feed to animals is about 8-12% in the intestines and is consumed by the microbes in the animal's intestines.
All of the programs and drugs that inhibit the rapid propagation of microbes in the gut have this function. It can improve feed efficiency and reduce feed to meat ratio.
From now on for 30 years, we are all using antibiotics because they are cheap and easy to use.
From now on for the next 15 years, the main thing should be essential oils.
After the essential oils, it is undoubtedly the era of microbes.
The types and amounts of antibiotics used by different manufacturers are different. The effect is bound to be different.
The essential oil dosage forms produced by different manufacturers and the sustained release effects are different, and the difference is particularly large.
The microbial functions used by different manufacturers are even more different.
These are the differences in premixes.
Third, summarize
Of course, the rest is the development of different manufacturers based on market demand. These techniques are included in the premix. For example, some products are finished, and the fur looks good. Some products are used up, and the egg shell is bright. Some products are eaten casually and will not be diarrhea. There are great differences in the technical means of different manufacturers. It has taken many years of hard work and funding, and the research and development has been successful.
From this point of view, the difference in premix is ​​actually very large.
I understand that there are so many premixes on the top. I believe that after reading these, you will not say that the premix is ​​almost the same.
Q: The water content of the carrier will also affect it, such as zeolite?
A: There will definitely be an impact. It is very dangerous if all the ingredients in the premix can bring water in.
Premixes are highly concentrated and many materials are very unstable at high water content.
Question: When it comes to the problem of this water mix, the pros and cons will come out.
A: Yes, the water mix is ​​very convenient to use, and the effect is better than the powder, but pay attention to some incidental problems, how to avoid it.
A: Domestic microbiology research is far less than Japan and South Korea.
A: It is not like this. Our country is only a slow start of biotechnology. Soon we will catch up and the microbes with powerful functions are genetically improved.
Q: It is said that the meat is more expensive than antibiotics and essential oils. If the corn is 1 jin, I think the functional part can be ignored.
A: Yes, in fact, food is cheaper than antibiotics and essential oils, but the amount of food is large, and the amount of essential oils and antibiotics is small. Premixing is to get more results with less cost.
Even if the corn is a pound, the total cost in the feed is still very high, and the total cost of antibiotics in the feed is much lower.
Q: How much does Wang Bo lard play on pig growth?
A: In another WeChat group, Yang Bo, he has a wonderful conclusion that we feed pigs with protein and fat. In the feed, more than 60 parts of the starch are finally converted into fat. In this sense, Feeding pigs with starch is not as efficient as feeding fat. So which kind of fat is the best? Of course, it is lard, which works best.
Q: 4% premix, how much is the amino acid used?
A: This is to calculate the amino acid content of your full price, then estimate how much your feed intake, then calculate how many targets increase each day, and then calculate how much amino acid is missing.
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